/*
 * Copyright (C) the libgit2 contributors. All rights reserved.
 *
 * This file is part of libgit2, distributed under the GNU GPL v2 with
 * a Linking Exception. For full terms see the included COPYING file.
 */
#ifndef INCLUDE_unix_posix_h__
#define INCLUDE_unix_posix_h__

#include "git2_util.h"

#include <stdio.h>
#include <dirent.h>
#include <sys/param.h>
#include <sys/time.h>
#include <sys/stat.h>

typedef int GIT_SOCKET;
#define INVALID_SOCKET -1

#define p_lseek(f,n,w) lseek(f, n, w)
#define p_fstat(f,b) fstat(f, b)
#define p_lstat(p,b) lstat(p,b)
#define p_stat(p,b) stat(p, b)

#if defined(GIT_NSEC_MTIMESPEC)
# define st_atime_nsec st_atimespec.tv_nsec
# define st_mtime_nsec st_mtimespec.tv_nsec
# define st_ctime_nsec st_ctimespec.tv_nsec
#elif defined(GIT_NSEC_MTIM)
# define st_atime_nsec st_atim.tv_nsec
# define st_mtime_nsec st_mtim.tv_nsec
# define st_ctime_nsec st_ctim.tv_nsec
#elif !defined(GIT_NSEC_MTIME_NSEC) && defined(GIT_NSEC)
# error GIT_NSEC defined but unknown struct stat nanosecond type
#endif

#define p_utimes(f, t) utimes(f, t)

#define p_readlink(a, b, c) readlink(a, b, c)
#define p_symlink(o,n) symlink(o, n)
#define p_link(o,n) link(o, n)
#define p_unlink(p) unlink(p)
#define p_mkdir(p,m) mkdir(p, m)
extern char *p_realpath(const char *, char *);

GIT_INLINE(int) p_fsync(int fd)
{
	p_fsync__cnt++;
	return fsync(fd);
}

#define p_recv(s,b,l,f) recv(s,b,l,f)
#define p_send(s,b,l,f) send(s,b,l,f)
#define p_inet_pton(a, b, c) inet_pton(a, b, c)

#define p_vsnprintf(b, c, f, a) vsnprintf(b, c, f, a)
#define p_snprintf snprintf
#define p_chdir(p) chdir(p)
#define p_rmdir(p) rmdir(p)
#define p_access(p,m) access(p,m)
#define p_ftruncate(fd, sz) ftruncate(fd, sz)

/*
 * Pre-Android 5 did not implement a virtual filesystem atop FAT
 * partitions for Unix permissions, which causes chmod to fail. However,
 * Unix permissions have no effect on Android anyway as file permissions
 * are not actually managed this way, so treating it as a no-op across
 * all Android is safe.
 */
#ifdef __ANDROID__
# define p_chmod(p,m) 0
#else
# define p_chmod(p,m) chmod(p, m)
#endif

/* see win32/posix.h for explanation about why this exists */
#define p_lstat_posixly(p,b) lstat(p,b)

#define p_localtime_r(c, r) localtime_r(c, r)
#define p_gmtime_r(c, r) gmtime_r(c, r)

#define p_timeval timeval

#ifdef GIT_FUTIMENS
GIT_INLINE(int) p_futimes(int f, const struct p_timeval t[2])
{
	struct timespec s[2];
	s[0].tv_sec = t[0].tv_sec;
	s[0].tv_nsec = t[0].tv_usec * 1000;
	s[1].tv_sec = t[1].tv_sec;
	s[1].tv_nsec = t[1].tv_usec * 1000;
	return futimens(f, s);
}
#else
# define p_futimes futimes
#endif

#define p_pread(f, d, s, o) pread(f, d, s, o)
#define p_pwrite(f, d, s, o) pwrite(f, d, s, o)

#endif
